My favorite Terry Goodkind quote. It's applicable to sooo many situations:
“Faith and feelings are the warm marrow of evil. Unlike reason, faith and feelings provide no boundary to limit any delusion, any whim. They are virulent poison, giving the numbing illusion of moral sanction to every depravity ever hatched.
Faith and feelings are the darkness to reason’s light.
Reason is the very substance of truth itself. The glory that is life is wholly embraced through reason. In rejecting it, in rejecting reason, one embraces death.”
“Persuade me or prove to me that I am mistaken in thought or deed, and I will gladly change—for it is the truth I seek, and the truth never harmed anyone. Harm comes from persisting in error and clinging to ignorance.” —Marcus Aurelius